el-tree 的运用

 <el-tree

                    :data="dataList"

                    show-checkbox

                    :default-expand-all="false"

                    node-key="name"

                    ref="tree"

                    highlight-current

                    :props="defaultProps"

                  >

                  </el-tree>

 

  getCheckedKeys() {

      let shuju = this.$refs.tree.getCheckedKeys();

      let checkNodes = this.$refs.tree.getCheckedNodes();

      let userNames = [];

      checkNodes.map((item) => {

        if (item.children) {

          return;

        }

        userNames.push(item.id);

      });

      // console.log(userNames);

      this.ygsl = userNames.length;

      this.bum = userNames.join(",");

      this.flg = 2;

      this.dialogFormVisible = false;

    },